Results 251 to 260 of about 64,641 (295)
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FTIR investigation of CTAB–Al–montmorillonite complexes
Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy, 2007In this study, CTAB-Al-montmorillonite complexes were synthesized by pre-modifying montmorillonite using different concentrations of surfactant (resulting in different surfactant loadings and basal spacings), then pillaring the organoclays with hydroxy-Al cations.
Peng Yuan, Hongping He, Jianxi Zhu
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The interaction between morin and CTAB aggregates
Journal of Colloid and Interface Science, 2005Electronic absorption spectra, fluorescence emission spectra, ATR-FTIR spectra, cyclic voltammetric measurements, and ab initio quantum calculation are used to study the properties of morin in CTAB micelles with different microstructures and microenvironments and to gain information about the binding of morin with CTAB micelles. Morin can be located in
Weiya, Liu, Rong, Guo
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Combing DNA on CTAB-coated surfaces
Biophysical Chemistry, 2004A fluorescence microscope (FM) coupled with an intensified charge-coupled device (ICCD) camera was used to investigate the combing of DNA on cetyltrimethyl ammonium bromide (CTAB)-coated glass surfaces. DNA molecules can be combed uniform and straight on CTAB-coated surfaces. Different combing characteristics at different pH values were found. At lower
Hu-Zhi, Zheng +4 more
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The effect of CTAB on Na2SO4 nucleation in mixed Na2SO4/CTAB aerosols by FTIR-ATR technology
Chinese Chemical Letters, 2016Abstract FTIR-ATR technology is used to study the efflorescence kinetic of Na2SO4 and mixed Na2SO4/CTAB aerosols. As the RH decreased linearly, the ν3 SO42− band shifts from 1094 cm−1 to 1132 cm−1, suggesting the phase transition of Na2SO4 from solution to crystal phase (III).
Dan-Ting Tan +3 more
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The source of toxicity in CTAB and CTAB-stabilized gold nanorods
2013The use of nanoparticles for sensing, cell imaging, and therapy has seen an extraordinary increase, in recent years. But, one of the issues commonly encountered when using nanoparticles in bioapplications is their toxicity. Cetyltrimethylammonium bromide (CTAB) is a common surfactant used in nanoparticle synthesis.
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The dynamical landscape in CTAB micelles
Soft Matter, 2012Here we report molecular dynamics of cetyltrimethylammonium bromide (CTAB) based cationic micelles as studied using an incoherent quasielastic neutron scattering (QENS) technique. Data as obtained from two different spectrometers, IRIS at the ISIS facility, UK, and FOCUS at SINQ, PSI, Switzerland, having energy resolutions, ΔE ≈ 17.5 μeV and 55 μeV ...
Sharma, V.K. +5 more
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Optics and Laser Technology, 2018
Abstract ZnO nanoparticles were produced by pulsed laser ablation of a high purity (99.99%) zinc metal target in different concentration of CTAB solution. A Q-switched Nd:YAG laser operating at wavelengths of 1064 nm with pulse width of 7 ns and 10 Hz repetition rate was employed to irradiate the Zn target in CTAB.
Soheila Abdi, Davoud Dorranian
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Abstract ZnO nanoparticles were produced by pulsed laser ablation of a high purity (99.99%) zinc metal target in different concentration of CTAB solution. A Q-switched Nd:YAG laser operating at wavelengths of 1064 nm with pulse width of 7 ns and 10 Hz repetition rate was employed to irradiate the Zn target in CTAB.
Soheila Abdi, Davoud Dorranian
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Ultrasonic Studies of Ctab in Glycol
Molecular Crystals and Liquid Crystals, 2003Ultrasonic absorption and velocity measurements have been made in cetyl trimethyl ammonium bromide (CTAB) in nonaqueous solution of ethylene glycol as a function of concentration, temperature, and at a fixed frequency. The interferometer technique has been used to measure ultrasonic velocity at 2 MHz.
S. K. Kor, R. R. Yadav, Devraj Singh
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Langmuir, 1999
The behavior of glycerol and glyceraldehyde as cosurfactants in the ternary CTAB/glycerol/water and CTAB/glyceraldehyde/water systems is studied. The phase diagrams only show the L and the hexagonal H1 phases. The L phase conductivity results at low surfactant concentration agree with no interaction between both cosurfactants and CTAB micelles.
A. B. Cortés, M. Valiente, E. Rodenas
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The behavior of glycerol and glyceraldehyde as cosurfactants in the ternary CTAB/glycerol/water and CTAB/glyceraldehyde/water systems is studied. The phase diagrams only show the L and the hexagonal H1 phases. The L phase conductivity results at low surfactant concentration agree with no interaction between both cosurfactants and CTAB micelles.
A. B. Cortés, M. Valiente, E. Rodenas
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Acid–base equilibrium of puerarin in CTAB micelles
Journal of Pharmaceutical and Biomedical Analysis, 2007Electronic absorption spectra, fluorescence emission spectra, 1HNMR and ab initio quantum calculation are used to study the acid-base equilibrium of puerarin in cetytrimethylammonium bromide (CTAB) micelles with different microstructures and microenvironments.
Juqun, Xi, Rong, Guo
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